Triexta : new generic fiber name

The Federal Trade Commission (FTC) has issued a final rule, effective March 26, 2009, that establishes the subclass name triexta as an alternative to the generic name polyester for a subclass of polyester fibers made from poly(trimethylene terephthalate).

The petitioners who sought this designation stated that PTT fiber, while having the same general chemical composition of polyester, has distinctive features of durability, resilience, softness and ability to stretch with recovery that make it significantly more suitable than conventional polyester for carpet and apparel.

The FTC has concluded that each of the four criteria for creating a new generic fiber subclass have been met:

  1. PTT has the same general chemical composition as an established generic fiber category
  2. PTT has distinctive properties that make it suitable for uses for which other fibers under the established generic name would not be suited or would be significantly less well suited
  3. these properties are important to the general public
  4. these properties are the result of a new method of manufacture or PTT’s substantially differentiated physical characteristics.